Prerecorded broadcasts?

[nufield]

Is it at all possible to use shoutcast installed on linux, to play a
prerecorded broadcast, using a playlist of mp3's that would include music, annoucements, promos, and readings that are located on the linux server?
Everything I've come across seems to require a winbox with winamp connecting to linux IP, and we only have one DJ, who's area does not yet have cable or DSL, so, he can't maintain a constant connection using home winbox; and needs to cut some zzzz's from time to time. ;-) Is there any kind of cron job, servlet or other means of setting up a "timed playlist" which would simulate what the winamp plugin does?

We have 4 websites on a colocated linux machine, with 80Gb space, and 400Gb/monthly b/w available, and have successfully broadcasted 'live" with our install of shoutcast; we have over 150 hours of mp3s, being broadcast now, via live365, but the advs. are not appropriate, and, we are non-profit, can't afford to pay their charges to disable the advs. We are adding more original arrangements, and plan on having several weeks of prerecorded programming available by year's end; our DJ is the musician, arranger, and reader, the broadcast is non-commercial, hence, our limited staffing and budget.
Thanks, folks.
tom nufield